Amoxicillin Dosing, American Style


A quick way to dose amoxicillin using pounds instead of kilograms.

Tired of "40 mg/kg/d, divided tid"? Try these pounds-based formulas instead:

  • 40 mg/kg/d = 6 mg/lb/dose
  • 80 mg/kg/d = 12 mg/lb/dose
  • 120 mg/kg/d = 18 mg/lb/dose

Just be sure to write the mg/kg dosing on your prescription as well, lest the pharmacist think you are overdosing a child.

- David L. Smith, MD
   Auburn, ME

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